21161308

素因数分解:

$2^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{3011}}^1$

素因数の和:3273

約数の個数: 24

約数和(自身を含む): 42505344

約数和(自身を除く): 21344036

約数列:

[1, 2, 4, 7, 14, 28, 251, 502, 1004, 1757, 3011, 3514, 6022, 7028, 12044, 21077, 42154, 84308, 755761, 1511522, 3023044, 5290327, 10580654, 21161308]

約数ペア:

[(1, 21161308), (2, 10580654), (4, 5290327), (7, 3023044), (14, 1511522), (28, 755761), (251, 84308), (502, 42154), (1004, 21077), (1757, 12044), (3011, 7028), (3514, 6022)]